import axios from 'axios'

const service = axios.create({
    responseType : 'arraybuffer'
})

service.interceptors.request.use(config => {
    if(window.sessionStorage.getItem("tokenStr")){
        config.headers['Authorization'] = window.sessionStorage.getItem("tokenStr")
      }
      return config;
},error => {
    console.log(error)
})


service.interceptors.response.use(resp =>{
    const headers = resp.headers;
    let reg = RegExp(/application\/json/);
    if(headers['content-type'].match(reg)){
        resp.data = unitToString(resp.data)
    } else {
        let fileDownload = require('js-file-download');
        let fileName = headers['content-disposition'].split(';')[1].split('filename=')[1];
        fileName = decodeURIComponent(fileName);
        let contentType = headers['content-type'];
        fileDownload(resp.data, fileName, contentType);
    }
},error =>{
    console.log(error)
})


function unitToString(unitArray){
    let encodedString = String.fromCharCode.apply(null, new Uint8Array(unitArray));
    let decodedString = decodeURIComponent(escape(encodedString));
    return JSON.parse(decodedString);
}


let base = ''

export const downloadRequest = (url, params) => {
  return service({
    method: 'get',
    url: `${base}${url}`,
    data: params
  })
}

  export default service